Protective Properties of Salivary Pellicles from Two Different Intraoral Sites on Enamel Erosion

Hannig, Matthias; Balz, M

doi:10.1159/000047446

Cited by 104 publications

(110 citation statements)

References 19 publications

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“…16 For convenience, bovine enamel was used for this investigation; it has also been used for previous in vitro studies that investigated the erosion phenomenon. 17 Although there is a direct correlation in changes of human and bovine enamel hardness, morphological differences, such as the higher porosity of bovine enamel, can result in the formation of more extensive erosive lesions. The erosion process seems to occur twice as quickly in bovine enamel than in permanent human enamel and 1.5 times faster than in deciduous human enamel.…”

Section: Discussionmentioning

confidence: 99%

Erosive potential of different types of grape juices

et al. 2012

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The purpose of the present study was to evaluate the erosive potential of different types (concentrated and powdered) and commercial brands of industrialised grape juices. The pH of all five fruit drinks was measured at two time points: immediately after preparation and 24 hours later. Sixty specimens of bovine enamel were randomly allocated and immersed in different types of grape juice (n = 10) for 10 minutes four times a day for fifteen days. The enamel alteration was analysed using surface Knoop microhardness (KHN) and surface roughness (R a ) tests at baseline and on the 5 th , 10 th and 15 th days of the experiment. Two way ANOVA, Tukey's post hoc and Pearson's correlation tests were used for statistical analysis (α = 5%). The grape juices presented pH values ranging from 2.9 to 3.5. All of the tested juices promoted significant enamel mineral loss (p < 0.05) on the first evaluation (5 th day of immersion) and produced a significant increase in the mean roughness from the 10 th day on when compared to the control group (p < 0.05). By the 15 th day, all of the beverages had produced surface roughnesses that were significantly higher than that of the control group. The results suggest that all grape juices, regardless of their commercial presentation, present erosive potential.

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Section: Discussionmentioning

confidence: 99%

Erosive potential of different types of grape juices

et al. 2012

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“…SEM investigations were also applied for evaluating the efficacy of salivary acquired pellicle to protect underlying enamel surface from acidic dissolution [16][17][18] [14][15][16] or to demonstrate superficially deposited precipitates resulting from mineral dissolution with dif-ferently acting acids [19] [17]. In dentin, acid treatments may result in opening of the dentin tubules which could be graded according to its degree [20] [18]. With common scanning electron microscopes, moisture loss of specimens due to necessary preparation of the specimens for the SEM investigation may lead to additional alterations of the eroded surface.…”

Section: Scanning Electron Microscopymentioning

confidence: 99%

Methods for Assessment of Dental Erosion

Attin

Wegehaupt²

2014

Monographs in Oral Science

118

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Various assessment techniques have been applied to evaluate the loss of dental hard tissue and the surface-softened zone in enamel induced by erosive challenges. In this chapter, the most frequently adopted techniques for analyzing the erosively altered dental hard tissues are reviewed, such as profilometry, measuring microscope techniques, microradiography, scanning electron microscopy, atom force microscopy, nano-and microhardness tests and iodide permeability test. Moreover, methods for chemical analysis of minerals dissolved from dental hard tissue are discussed. It becomes evident that the complex nature of erosive mineral loss and dissolution might not be comprehended by a single technique, but needs application of different approaches for full understanding. Chapter 10Lussi A (ed): Dental Erosion. Monogr Oral Sci. Basel, Karger, 2006, vol 20, pp 152-172 Methods for Assessment of Dental Erosion Thomas Attin, Florian Just WegehauptCenter for Dental Medicine, Clinic for Preventive Dentistry, Periodontology and Cariology, University of Zurich, Zürich, Switzerland AbstractVarious assessment techniques have been applied to evaluate the loss of dental hard tissue and the surface-softened zone in enamel induced by erosive challenges. In this chapter, the most frequently adopted techniques for analyzing the erosively altered dental hard tissues are reviewed, such as profilometry, microradiography, scanning electron microscopy, atom force microscopy, nano-and microhardness tests and iodide permeability test. Moreover, methods for chemical analysis of minerals dissolved from dental hard tissue are discussed. It becomes evident that the complex nature of erosive mineral loss and dissolution might not be comprehended by a single technique, but needs application of different approaches for full understanding. Copyright © 2006 S. Karger AG, Basel Acid attack leads to an irreversible loss of the outermost enamel and dentin layers and to partial demineralization (softening) of the tooth surface. In enamel, the thickness of the softened layer is estimated to be 2-5 tJm [1,2] [1, 2]. The softened eroded tooth surface is highly susceptible to abrasive wear, and mechanical impacts such as toothbrushing can easily remove the superficially demineralized dental hard tissue [3][4][5] [3][4][5]. For simulating intra-oral erosion as closely as possible, it is desirable to assess the erosive effects on native tooth surfaces. Most of the methods described below need polished surfaces for precise assessment of the erosively induced defects or for creating reference surfaces, which means that the natural, often fluoridated surface of the tooth has to be removed. However, it should be considered that in the case of intra-oral erosion the outermost surface layers are also continuously removed by the acid attack, so that a 'polished' surface is Attin 2 cre-ated. When monitoring of erosive surface alterations within a period of time is performed, it could become necessary to fix a specimen in the measuring device i...

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“…The thickness of the pellicle layer is variable and depends on the oral exposure time as well as the localization in the oral cavity. It ranges between 10 to 20 nm after 3 min and up to 500 nm on buccal sites after 2 h ( 8,20,26 ). Despite these limitations, precise analysis of FAs in the pellicle is possible with the presented procedure.…”

Section: Fa Profi Le Of the Initial Oral Biofi Lm (Pellicle)mentioning

confidence: 99%